Home / 1,320,490.32-1,822,710.24-776,602.32

Finding the Fourth Proportional to 1,320,490.32, 1,822,710.24 and 776,602.32

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Solution

The fourth proportional to 1,320,490.32, 1,822,710.24 and 776,602.32 is: 1,071,966.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,490.32 : 1,822,710.24 = 776,602.32 : x
  2. Step 2: Convert to fraction form
    1,320,490.32/1,822,710.24 = 776,602.32/x
  3. Step 3: Cross multiply
    1,320,490.32x = 1,822,710.24 × 776,602.32
  4. Step 4: Simplify right side
    1,320,490.32x = 1,415,521,001,071.76
  5. Step 5: Solve for x
    x = 1,415,521,001,071.76/1,320,490.32
  6. Step 6: Final answer
    x = 1,071,966.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.